If the length of a $22 c m$ $22 cm$ spring increases to $55 c m$ $55 cm$ when a $7 k g$ $7 kg$ weight is hanging from it, what is the spring's constant?

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Answer 1 · 2016-04-07T12:43:00

$K = 208, 09 \frac{N}{m}$ $K=208,09" N/m$

$G = m \cdot g G = 7 \cdot 9, 81 G = 68, 67 N$ $G=m*g" "G=7*9,81" "G=68,67 " "N$

$Delta x=55-22=33 cm=0,33 m$
$K:"spring constant"$
$G=K*Delta x$

$68,67=K*0,33$

$K=(68,67)/(0,33)$

$K=208,09" N/m$

If the length of a 22 cm22cm22 cm spring increases to 55 cm55cm55 cm when a 7 kg7kg7 kg weight is hanging from it, what is the spring's constant?